Interfacial fracture toughness of composite concrete beams

Yougui Lin; John N. Karadelis

doi:10.1016/j.conbuildmat.2019.04.066

Interfacial fracture toughness of composite concrete beams

Yougui Lin
, John N. Karadelis

Guangxi Transport Technology Co. Ltd

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

198 Downloads (Pure)

Abstract

A test for measuring the interfacial fracture toughness of a bi-material interface, essentially for concrete overlaid pavements was developed. The measured interfacial fracture toughness of steel fibre-reinforced, roller-compacted, polymer modified concrete (SFR-RC-PMC) onto ordinary Portland cement concrete (OPCC) was found to be 52.0 J/m2 and 22.6 J/m2 for rough and smooth interfaces respectively. The experimental interfacial fracture toughness results can be suitable for the design of overlays on worn concrete pavements.

In addition, the measured interfacial fracture toughness was used to predict the cracking trajectory of the composite beams under four-point bending (4 PB) tests. It was concluded that a single interfacial fracture parameter, the ERR (energy release rate) at interface, is an appropriate and sufficient parameter to assess the interfacial delamination performance of a composite beam under 4 PB flexure.

Original language	English
Pages (from-to)	413-423
Number of pages	11
Journal	Construction and Building Materials
Volume	213
Early online date	13 Apr 2019
DOIs	https://doi.org/10.1016/j.conbuildmat.2019.04.066
Publication status	Published - 20 Jul 2019

Keywords

Concrete
Delamination
Energy-release-rate
Finite element analysis
Interface fracture
Stress-intensity-factors
Toughness

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10.1016/j.conbuildmat.2019.04.066

Karadelis_Interfacial_Fracture_Toughness_Construction_Building_MaterialsAccepted author manuscript, 1.46 MBLicence: CC BY-NC-ND

Cite this

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title = "Interfacial fracture toughness of composite concrete beams",

abstract = "A test for measuring the interfacial fracture toughness of a bi-material interface, essentially for concrete overlaid pavements was developed. The measured interfacial fracture toughness of steel fibre-reinforced, roller-compacted, polymer modified concrete (SFR-RC-PMC) onto ordinary Portland cement concrete (OPCC) was found to be 52.0 J/m2 and 22.6 J/m2 for rough and smooth interfaces respectively. The experimental interfacial fracture toughness results can be suitable for the design of overlays on worn concrete pavements. In addition, the measured interfacial fracture toughness was used to predict the cracking trajectory of the composite beams under four-point bending (4 PB) tests. It was concluded that a single interfacial fracture parameter, the ERR (energy release rate) at interface, is an appropriate and sufficient parameter to assess the interfacial delamination performance of a composite beam under 4 PB flexure.",

keywords = "Concrete, Delamination, Energy-release-rate, Finite element analysis, Interface fracture, Stress-intensity-factors, Toughness",

author = "Yougui Lin and Karadelis, \{John N.\}",

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doi = "10.1016/j.conbuildmat.2019.04.066",

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journal = "Construction and Building Materials",

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T1 - Interfacial fracture toughness of composite concrete beams

AU - Lin, Yougui

AU - Karadelis, John N.

PY - 2019/7/20

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N2 - A test for measuring the interfacial fracture toughness of a bi-material interface, essentially for concrete overlaid pavements was developed. The measured interfacial fracture toughness of steel fibre-reinforced, roller-compacted, polymer modified concrete (SFR-RC-PMC) onto ordinary Portland cement concrete (OPCC) was found to be 52.0 J/m2 and 22.6 J/m2 for rough and smooth interfaces respectively. The experimental interfacial fracture toughness results can be suitable for the design of overlays on worn concrete pavements. In addition, the measured interfacial fracture toughness was used to predict the cracking trajectory of the composite beams under four-point bending (4 PB) tests. It was concluded that a single interfacial fracture parameter, the ERR (energy release rate) at interface, is an appropriate and sufficient parameter to assess the interfacial delamination performance of a composite beam under 4 PB flexure.

AB - A test for measuring the interfacial fracture toughness of a bi-material interface, essentially for concrete overlaid pavements was developed. The measured interfacial fracture toughness of steel fibre-reinforced, roller-compacted, polymer modified concrete (SFR-RC-PMC) onto ordinary Portland cement concrete (OPCC) was found to be 52.0 J/m2 and 22.6 J/m2 for rough and smooth interfaces respectively. The experimental interfacial fracture toughness results can be suitable for the design of overlays on worn concrete pavements. In addition, the measured interfacial fracture toughness was used to predict the cracking trajectory of the composite beams under four-point bending (4 PB) tests. It was concluded that a single interfacial fracture parameter, the ERR (energy release rate) at interface, is an appropriate and sufficient parameter to assess the interfacial delamination performance of a composite beam under 4 PB flexure.

KW - Concrete

KW - Delamination

KW - Energy-release-rate

KW - Finite element analysis

KW - Interface fracture

KW - Stress-intensity-factors

KW - Toughness

UR - http://www.mendeley.com/research/interfacial-fracture-toughness-composite-concrete-beams

U2 - 10.1016/j.conbuildmat.2019.04.066

DO - 10.1016/j.conbuildmat.2019.04.066

M3 - Article

SN - 0950-0618

VL - 213

SP - 413

EP - 423

JO - Construction and Building Materials

JF - Construction and Building Materials

ER -

Interfacial fracture toughness of composite concrete beams

Abstract

Keywords

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